Healthy In The Hills - 30 Day Challenge - Plank Exercise! We want everyone to challenge yourself and teammates when doing the 30 Day Planks. Share a photo or video of you
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MyNavy HR - In just four short months Sailors will need to master the plank for the PRT. Earlier today we shared tips on how to plank, now let's tackle it together
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Maria Carrillo Cross Country: Summer Challenge #2 Take-on the 30 Day Plank Challenge!!!